Applied Andrew Straw's pyglet-xvfb.patch patch from issue 456 to allow setups that don't support 16 or 24 bit depth.
Applied Andrew Straw's pyglet-xvfb.patch patch from issue 456 to
allow setups that don't support 16 or 24 bit depth.

seeminglee/pyglet64,seeminglee/pyglet64,seeminglee/pyglet64